download_mit_normal.py - error in data and rpeaks extraction

[HotDog702]

line 46-47:

    # Select only 1h of recording (otherwise it's too big)
    data = data[460800:460800*3].reset_index(drop=True)
    anno = anno[(anno["Rpeaks"] > 460800) & (anno["Rpeaks"] <= 460800*2)].reset_index(drop=True)

data - extracted 2 hours anno - only one hour